378 



BOARD OF AGRICULTURE. 



Valuation per two thousand pounds :■ 



147.8 pounds of soluble phosphoric acid, 

 42.6 pounds of reverted phosphoric acid, 

 23. pounds of insoluble phosphoric acid, 

 51.8 pounds of potassium oxide, . 

 58 6 pounds of nitrogen. 



$11 82 



3 20 



69 



2 85 



9 96 



$28 62 

 Darling's Animal Fertilizer. 

 (Collected of W. S. Westcott, Amherst, Mass.) 

 Guaranteed composition : Total phosphoric acid, 10 to 12 

 per cent. ; potassium oxide, 4 to 6 per cent. ; ammonia, 4 

 to 6 per cent, (equivalent to nitrogen, 3.3 to 5 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Revei'ted phosphoric acid, 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 Nitx'ogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



5. pounds of soluble phosphoric acid, 

 89.2 poimds of reverted phosphoric acid, 

 161. pounds of insoluble phosphoric acid, 

 98. 6 poimds of potassium oxide, . 

 92.8 poimds of nitrogen, 



Per cent. 



10.75 

 12.76 

 .25 

 4.46 

 8.05 

 4.83 

 4.64 

 1.10 



$0 40 

 6 69 

 4 88 

 4 19 



15 78 



$31 89 

 George W. Miles' Fish and Potash. 

 (Collected of W S Westcott, Amherst, Mass.) 

 Guaranteed composition : Available phosphoric acid, 5 to 

 8 per cent. ; insoluble phosphoric acid, 1 to 3 per cent. ; po- 

 tassium sulphate, 4 to 6 per cent.; ammonia, 3 to 6 per 

 cent, (equivalent to nitrogen, 2^ to 5 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid. 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 jSTitrogen, 

 Insoluble matter, . 



Per cent. 



16.16 

 9 52 

 537 

 199 

 2.16 

 3.69 

 2.83 

 6 67 



